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Senior Full-Stack Developer with 6+ years’ commercial experience delivering secure, high-performance web applications in finance, higher education, and martech. Specialising in PHP/Laravel with modern JavaScript (Vue, TypeScript), I focus on clean architecture, API design, and robust automated testing. Known for independent delivery of complex projects, SQL performance tuning, and post-deployment care.…Senior Full-Stack Developer with 6+ years’ commercial experience delivering secure, high-performance web applications in finance, higher education, and martech. Specialising in PHP/Laravel with modern JavaScript (Vue, TypeScript), I focus on clean architecture, API design, and robust automated testing. Known for independent delivery of complex projects, SQL performance tuning, and post-deployment care.

Mateusz Szymanski

Full Stack Developer, Back-End Developer, Web Developer, +2

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Senior Full-Stack Developer with 6+ years’ commercial experience delivering secure, high-performance web applications in finance, higher education, and martech. Specialising in PHP/Laravel with modern JavaScript (Vue, TypeScript), I focus on clean architecture, API design, and robust automated testing. Known for independent delivery of complex projects, SQL performance tuning, and post-deployment care.…Senior Full-Stack Developer with 6+ years’ commercial experience delivering secure, high-performance web applications in finance, higher education, and martech. Specialising in PHP/Laravel with modern JavaScript (Vue, TypeScript), I focus on clean architecture, API design, and robust automated testing. Known for independent delivery of complex projects, SQL performance tuning, and post-deployment care.

Available to hire

Senior Full-Stack Developer with 6+ years’ commercial experience delivering secure, high-performance web applications in finance, higher education, and martech. Specialising in PHP/Laravel with modern JavaScript (Vue, TypeScript), I focus on clean architecture, API design, and robust automated testing. Known for independent delivery of complex projects, SQL performance tuning, and post-deployment care.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Beginner

Beginner

Language

English

Fluent

Polish

Fluent

Work Experience

Backend Developer at Perfect Portal

April 1, 2024 - November 14, 2025

API Integration & Development: designed and implemented integrations with third-party REST APIs (CRM, finance, legal, marketing), syncing client data, case/status updates, and documents between external platforms and internal systems. Migrated legacy PHP codebase to latest Laravel framework. SQL query optimization reducing query times by 30-40%, improving data retrieval and performance. Led complex features from scoping to delivery with post-deployment monitoring and rapid hotfixes. Mentored a new PHP developer and onboarded them into the team.

Platform Developer at DSG Finance

November 1, 2023 - November 1, 2023

Platform Development: Led development of a platform utilizing Vue.js, Tailwind and PHP technologies. Database and API optimization delivering 50% load-time reduction and improved overall performance. Web Ecosystem Enhancement: improved multi-platform ecosystem running on Laravel, Vue.js, WordPress and Blade.

Senior Web Developer at University of Chester

May 1, 2022 - May 1, 2022

Client Reporting: Produced and conveyed client reports with designated timelines. Backend- End Supervision: Supervised backend development using PHP to ensure website integrity, security, and efficiency. Performance Enhancement: Enhanced queries and functions to achieve faster speeds and improved user experience. Feature Development: Led development of new and existing functional areas.

Developer at CandDi

October 1, 2019 - October 1, 2019

Troubleshooting and Remediation: Delivered proficient troubleshooting and effective remediation for a web application. Legacy Code Restructuring: Reworked legacy controllers and data objects, enhancing code maintainability and performance. Unit Testing: Developed unit tests increasing code coverage by 20%, enabling smoother future modifications. Data Base and API Optimization: Revamped MySQL tables to enhance operational efficiency and data integrity.